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Sports Medicine—Open

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https://www.readbyqxmd.com/read/29679164/the-effect-of-a-school-based-intervention-on-physical-activity-and-well-being-a-non-randomised-controlled-trial-with-children-of-low-socio-economic-status
#1
Stephen Shannon, Deirdre Brennan, Donncha Hanna, Zoe Younger, Jessica Hassan, Gavin Breslin
BACKGROUND: Self-determination theory (SDT) has been used to predict children's physical activity and well-being. However, few school-based SDT intervention studies have been conducted, and no research exists with children of low socio-economic status (SES). Therefore, SDT-derived needs-supportive teaching techniques informed the design and analyses of the Healthy Choices Programme (HCP). The aim was to determine if the HCP could enhance moderate-to-vigorous physical activity (MVPA) and well-being among children of low SES through increasing autonomy-support, needs satisfaction and intrinsic motivation...
April 20, 2018: Sports Medicine—Open
https://www.readbyqxmd.com/read/29610999/quantifying-the-effects-of-different-treadmill-training-speeds-and-durations-on-the-health-of-rat-knee-joints
#2
Jaqueline Lourdes Rios, Kevin Rudi Boldt, James William Mather, Ruth Anne Seerattan, David Arthur Hart, Walter Herzog
BACKGROUND: Walking and running provide cyclical loading to the knee which is thought essential for joint health within a physiological window. However, exercising outside the physiological window, e.g. excessive cyclical loading, may produce loading conditions that could be detrimental to joint health and lead to injury and, ultimately, osteoarthritis. The purpose of this study was to assess the effects of a stepwise increase in speed and duration of treadmill training on knee joint integrity and to identify the potential threshold for joint damage...
April 2, 2018: Sports Medicine—Open
https://www.readbyqxmd.com/read/29589215/cellular-glucose-uptake-during-breath-hold-diving-in-experienced-male-breath-hold-divers
#3
Nicola Sponsiello, Danilo Cialoni, Massimo Pieri, Alessandro Marroni
BACKGROUND: The physiological and pathophysiological mechanisms that govern diving, both self-contained underwater breathing apparatus (SCUBA) and breath-hold diving (BH-diving), are in large part well known, even if there are still many unknown aspects, in particular about cell metabolism during BH-diving. The scope of this study was to investigate changes in glycemia, insulinemia, and the catecholamine response to BH-diving, to better understand if the insulin-stimulated glucose uptake mechanism is involved in cellular metabolism in this sport...
March 27, 2018: Sports Medicine—Open
https://www.readbyqxmd.com/read/29582181/self-myofascial-vibro-shearing-a-randomized-controlled-trial-of-biomechanical-and-related-changes-in-male-breakdancers
#4
Christopher-Marc Gordon, Sophie Manuela Lindner, Niels Birbaumer, Pedro Montoya, Rachel L Ankney, Frank Andrasik
BACKGROUND: This randomized controlled trial explored the practicality and effectiveness of a novel tool-assisted self-help device, one that combines vibrational oscillation, leverage, and the shearing effect from the edges, for promoting meaningful changes in key biochemical tissue indices and related parameters. METHODS: One hundred and thirteen male breakdancers were randomized to an intervention or control group. Individuals assigned to the intervention group performed the self-help treatment on the quadriceps and the iliotibial band of their right thighs for 8 min, while individuals assigned to the control condition merely sat quietly during this period...
March 27, 2018: Sports Medicine—Open
https://www.readbyqxmd.com/read/29492711/a-benefit-of-being-heavier-is-being-strong-a-cross-sectional-study-in-young-adults
#5
Gill A Ten Hoor, Guy Plasqui, Annemie M W J Schols, Gerjo Kok
BACKGROUND: In this study, the main hypothesis is that heavier people enjoy strength exercises more than normal-weight people, mediated by fat-free mass and muscle strength. Further, it is hypothesized that heavier people are better in strength exercises and enjoy strength exercises more compared to aerobic exercises. METHODS: In a cross-sectional study, height, weight, body composition (i.e., fat mass and fat-free mass by underwater weighing), muscle strength (i...
March 1, 2018: Sports Medicine—Open
https://www.readbyqxmd.com/read/29484576/a-subjective-assessment-of-the-prevalence-and-factors-associated-with-poor-sleep-quality-amongst-elite-japanese-athletes
#6
Masako Hoshikawa, Sunao Uchida, Yuichi Hirano
BACKGROUND: The amount, quality, and timing of sleep are considered important for athletes' ability to train, maximize training responses, and recover. However, some research has shown that elite athletes do not obtain sufficient sleep. Based on this background, researchers recently started to assess and manage sleep in elite athletes. The purpose of this study was to clarify the prevalence of poor sleep quality and its associated factors amongst elite Japanese athletes. METHODS: Eight hundred and ninety-one candidates for the 17th Asian Games Incheon 2014, who were over 20 years old, participated in this study...
February 26, 2018: Sports Medicine—Open
https://www.readbyqxmd.com/read/29484512/crossfit-overview-systematic-review-and-meta-analysis
#7
REVIEW
João Gustavo Claudino, Tim J Gabbett, Frank Bourgeois, Helton de Sá Souza, Rafael Chagas Miranda, Bruno Mezêncio, Rafael Soncin, Carlos Alberto Cardoso Filho, Martim Bottaro, Arnaldo Jose Hernandez, Alberto Carlos Amadio, Julio Cerca Serrão
BACKGROUND: CrossFit is recognized as one of the fastest growing high-intensity functional training modes in the world. However, scientific data regarding the practice of CrossFit is sparse. Therefore, the objective of this study is to analyze the findings of scientific literature related to CrossFit via systematic review and meta-analysis. METHODS: Systematic searches of the PubMed, Web of Science, Scopus, Bireme/MedLine, and SciELO online databases were conducted for articles reporting the effects of CrossFit training...
February 26, 2018: Sports Medicine—Open
https://www.readbyqxmd.com/read/29423763/associations-between-practice-related-changes-in-motor-performance-and-muscle-activity-in-healthy-individuals-a-systematic-review
#8
REVIEW
Dennis Brueckner, Rainer Kiss, Thomas Muehlbauer
BACKGROUND: A well-learned motor skill is characterized by the efficient activation of muscles that are involved in movement execution. However, it is unclear if practice-related changes in motor performance correlate with those in quantitative markers of muscle activity and if so, whether the association is different with respect to the investigated muscle (i.e., agonist and antagonist) and quantitative myoelectric parameter. Thus, we conducted a systematic review and characterized associations between practice-related changes in motor performance and muscle activity in healthy individuals...
February 8, 2018: Sports Medicine—Open
https://www.readbyqxmd.com/read/29388074/correction-to-aerobic-but-not-resistance-exercise-can-induce-inflammatory-pathways-via-toll-like-2-and-4-a-systematic-review
#9
P A M Cavalcante, M F Gregnani, J S Henrique, F H Ornellas, R C Araújo
The original article [1] mistakenly omits a grant acknowledgement; thus, the authors would like to acknowledge that the original article was supported by FAPESP 2015/20082-7.
January 31, 2018: Sports Medicine—Open
https://www.readbyqxmd.com/read/29387986/initial-symptom-presentation-after-high-school-football-related-concussion-varies-by-time-point-in-a-season-an-initial-investigation
#10
Benjamin L Brett, Andrew W Kuhn, Aaron M Yengo-Kahn, Zachary Y Kerr, Christopher M Bonfield, Gary S Solomon, Scott L Zuckerman
BACKGROUND: Schedule-based and in-season factors (e.g., competition type) have been shown to be associated with symptom reporting patterns and injury severity in sport-related concussion (SRC). To determine if acute neurocognitive and symptom presentation following SRC differ by time point within a high school football season. METHODS: Multicenter ambispective cohort of high school football players who sustained a SRC (N = 2594). Timing (early, mid, and late season) of SRC was based on median dates for the start of the pre-season, regular season, and playoffs of each states' football schedules...
January 31, 2018: Sports Medicine—Open
https://www.readbyqxmd.com/read/29330780/safety-in-mixed-martial-arts-a-7-year-review-of-cancelled-mma-bouts-in-calgary-alberta-during-the-pre-bout-medical-examination-period
#11
Gwynn Curran-Sills
BACKGROUND: Presently, there is no literature that examines the reasons for the cancellation of amateur or professional mixed martial arts (MMA) bouts. The purpose of this study was to review the circumstances that lead to the cancellation of MMA bouts by Calgary ringside physicians during the pre-bout examination period and to identify any emerging patterns that may guide the regulatoin of this sport. METHODS: The case-series  was constructed from the Calgary Combative Sports Commission pre-bout examination records and the medical records submitted by each athlete from January 2010 to December 2016...
January 12, 2018: Sports Medicine—Open
https://www.readbyqxmd.com/read/29330738/a-video-review-of-multiple-concussion-signs-in-national-rugby-league-match-play
#12
Andrew J Gardner, David R Howell, Grant L Iverson
BACKGROUND: Video review has been introduced in many professional sports worldwide to help recognize concussions. However, to date, there has been very little research on the accuracy of using video analysis to identify signs of concussion and the various combinations of observed signs. METHODS: The objective of the study is to determine the accuracy of combinations of clinical signs of concussion identified using video analysis to identify concussions in the National Rugby League (NRL)...
January 12, 2018: Sports Medicine—Open
https://www.readbyqxmd.com/read/29313156/frequency-of-self-reported-concussion-amongst-professional-and-semi-professional-footballers-in-ireland-during-the-2014-season-a-cross-sectional-study
#13
Nicola Coffey, Martin Lawless, Seamus Kelly, Conor Buggy
BACKGROUND: This paper examines the occupational risk of concussion amongst professional and semi-professional footballers in Ireland during the 2014 League of Ireland season. As part of a broader nationally representative study examining occupational safety and health (OSH) awareness amongst professional footballers, this empirical quantitative study, utilising a convenience sample is the first and largest investigation of the frequency of, and attitudes towards, concussion and concussion reporting amongst Irish senior professional and semi-professional footballers...
January 8, 2018: Sports Medicine—Open
https://www.readbyqxmd.com/read/29305780/corticosteroid-injection-for-an-orthopedic-complaint-in-a-female-with-gestational-diabetes
#14
Palee Myrex, Lorie Harper, Sara Gould
A female with gestational diabetes presented with hip pain characteristic of meralgia paresthetica and trochanteric bursitis. She had similar episodes prior to pregnancy that were treated successfully with non-steroidal anti-inflammatory drugs (NSAIDs) and corticosteroid injections. However, NSAID use during pregnancy poses risks to the fetus and corticosteroids carry a risk of hyperglycemia, especially in those with diabetes. Unfortunately, all attempts made to treat her conservatively failed to improve her symptoms...
January 5, 2018: Sports Medicine—Open
https://www.readbyqxmd.com/read/29305667/a-pilot-study-comparing-the-metabolic-profiles-of-elite-level-athletes-from-different-sporting-disciplines
#15
Fatima Al-Khelaifi, Ilhame Diboun, Francesco Donati, Francesco Botrè, Mohammed Alsayrafi, Costas Georgakopoulos, Karsten Suhre, Noha A Yousri, Mohamed A Elrayess
BACKGROUND: The outstanding performance of an elite athlete might be associated with changes in their blood metabolic profile. The aims of this study were to compare the blood metabolic profiles between moderate- and high-power and endurance elite athletes and to identify the potential metabolic pathways underlying these differences. METHODS: Metabolic profiling of serum samples from 191 elite athletes from different sports disciplines (121 high- and 70 moderate-endurance athletes, including 44 high- and 144 moderate-power athletes), who participated in national or international sports events and tested negative for doping abuse at anti-doping laboratories, was performed using non-targeted metabolomics-based mass spectroscopy combined with ultrahigh-performance liquid chromatography...
January 5, 2018: Sports Medicine—Open
https://www.readbyqxmd.com/read/29299780/the-key-roles-of-negative-pressure-breathing-and-exercise-in-the-development-of-interstitial-pulmonary-edema-in-professional-male-scuba-divers
#16
Olivier Castagna, Jacques Regnard, Emmanuel Gempp, Pierre Louge, François Xavier Brocq, Bruno Schmid, Anne-Virginie Desruelle, Valentin Crunel, Adrien Maurin, Romain Chopard, David Hunter MacIver
BACKGROUND: Immersion pulmonary edema is potentially a catastrophic condition; however, the pathophysiological mechanisms are ill-defined. This study assessed the individual and combined effects of exertion and negative pressure breathing on the cardiovascular system during the development of pulmonary edema in SCUBA divers. METHODS: Sixteen male professional SCUBA divers performed four SCUBA dives in a freshwater pool at 1 m depth while breathing air at either a positive or negative pressure both at rest or with exercise...
January 3, 2018: Sports Medicine—Open
https://www.readbyqxmd.com/read/29260420/physical-characteristics-of-players-within-the-australian-football-league-participation-pathways-a-systematic-review
#17
REVIEW
Jade A Z Haycraft, Stephanie Kovalchik, David B Pyne, Sam Robertson
BACKGROUND: Australian football (AF) players require endurance, strength, speed, and agility to be successful. Tests assessing physical characteristics are commonly used for talent identification; however, their ability to differentiate between players across the Australian Football League's (AFL) participation pathway remains unclear. The objective of this review was to quantify the physical characteristics of male AF players across the AFL participation pathway. METHODS: A search of databases was undertaken...
December 19, 2017: Sports Medicine—Open
https://www.readbyqxmd.com/read/29222606/hypothalamic-pituitary-adrenal-hpa-axis-functioning-in-overtraining-syndrome-findings-from-endocrine-and-metabolic-responses-on-overtraining-syndrome-eros-eros-hpa-axis
#18
Flavio A Cadegiani, Claudio E Kater
BACKGROUND: Overtraining syndrome (OTS) results from excessive training load without adequate recovery and leads to decreased performance and fatigue. The pathophysiology of OTS in athletes is not fully understood, which makes accurate diagnosis difficult. Previous studies indicate that alterations in the hypothalamus-pituitary-adrenal (HPA) axis may be responsible for OTS; however, the data is not conclusive. This study aimed to compare, through gold standard and exercise-independent tests, the response of the HPA axis in OTS-affected athletes (OTS group) to healthy physically active subjects (ATL group) and healthy non-active subjects (NCS group)...
December 8, 2017: Sports Medicine—Open
https://www.readbyqxmd.com/read/29218470/the-maximal-oxygen-uptake-verification-phase-a-light-at-the-end-of-the-tunnel
#19
REVIEW
Gustavo Z Schaun
Commonly performed during an incremental test to exhaustion, maximal oxygen uptake (V̇O2max ) assessment has become a recurring practice in clinical and experimental settings. To validate the test, several criteria were proposed. In this context, the plateau in oxygen uptake (V̇O2 ) is inconsistent in its frequency, reducing its usefulness as a robust method to determine "true" V̇O2max . Moreover, secondary criteria previously suggested, such as expiratory exchange ratios or percentages of maximal heart rate, are highly dependent on protocol design and often are achieved at V̇O2 percentages well below V̇O2max ...
December 8, 2017: Sports Medicine—Open
https://www.readbyqxmd.com/read/28785961/characteristics-of-the-foot-static-alignment-and-the-plantar-pressure-associated-with-fifth-metatarsal-stress-fracture-history-in-male-soccer-players-a-case-control-study
#20
Sho Matsuda, Toru Fukubayashi, Norikazu Hirose
BACKGROUND: There is a large amount of information regarding risk factors for fifth metatarsal stress fractures; however, there are few studies involving large numbers of subjects. This study aimed to compare the static foot alignment and distribution of foot pressure of athletes with and without a history of fifth metatarsal stress fractures. METHODS: The study participants comprised 335 collegiate male soccer players. Twenty-nine with a history of fifth metatarsal stress fractures were in the fracture group and 306 were in the control group (with subgroups as follows: 30 in the fracture foot group and 28 in the non-fracture group)...
December 2017: Sports Medicine—Open
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